Added ak-zblock-show with appropriate route in API with caching feature

1 files changed, 35 insertions, 0 deletions

diff --git a/api/routes/getZblock/index.js b/api/routes/getZblock/index.js
new file mode 100644
index 0000000..af14ae3
--- /dev/null
+++ b/api/routes/getZblock/index.js
@@ -0,0 +1,35 @@
+const { spawn } = require('child_process');
+const fs = require("fs");
+const config = require("../../config");
+
+/*
+ * Gets the local latest zblock
+ *
+ * Returns:
+ *     - JSON object
+ *     { zlatest: "Qm..." }
+ *
+ */
+module.exports = (req, res) => {
+    const command = spawn("ak-zblock-cache",[req.query.zblock]);
+    command.stdout.on("data", data => {
+    });
+
+    command.stderr.on("data", data => {
+            console.log(`stderr: ${data}`);
+    });
+
+    command.on('error', (error) => {
+            console.log(`error: ${error.message}`);
+    });
+
+    command.on("close", code => {
+        console.log(`child process exited with code ${code}`);
+
+        if ( code == 0 ) {
+            res.send(JSON.parse(fs.readFileSync(config.zblockDir+"/"+req.query.zblock)));
+        } else {
+            res.send({"error":"error"});
+        }
+    });
+};